According to these weak points , the thesis proposes a new nids architecture , and also describes the design and construction of an experimental nids called inids ( intelligent network intrusion dection system ) , which performs a real - time analysis on packet traffic sniffed off the network segment using an appropriate mix of expert system for misuse intrusion and data mining technology for anomaly intrusion 针对这些不足和问题，本文提出了一个新的网络入侵检测系统模型。该模型结合专家系统和数据挖掘两种智能信息处理技术，以增强模型分析的智能性和对新入侵的适应性。专家系统技术用于误用入侵的检测，具有实时性好、检测结果准确率高等优点，弥补了数据挖掘技术实时性较差的缺点。
The system which has been realized has many remarkable features : real time response 、 high compatibility 、 high expandability 、 high precision 、 strong reliability and security and friendly man - machine interface etc . based on the requirement analysis , the thesis has firstly designed the physical structure of whole system and field subsystem , it analyzed the mode of field network and design and realization of software 所实现的系统具有实时性好、兼容性好、可扩展性强、测量精度高、安全性高及友好的人机界面等优点。论文首先在需求分析的基础上进行了总体设计及现场子系统的物理结构设计，给出了系统的软件设计要求。分析了现场网络的形式，软件的设计与实现等。
The main computer is programmed under windows , while the assistant computer is programmed under dos . the last , based on the idea of module - structure , the software of the testing system are designed , thus this software system is compatible and transplantable to design again . the experiment of measuring principle is taken : take the xy flat of lathe as the parallel - pole device and adjust the angle of sensor , the rotating - probe can test the felloe mould in scanning way 借助虚拟仪器的思想，对测控系统进行了设计：采用光栅尺、光电编码器测量可动部件的运动量，分辨率高、误差小；采用细分驱动的步进电机装置，控制性能好；系统实施环境温度的检测、补偿，提高了检测精度；基于两级微机组建测控系统：主机为人机界面，采用windows编程，从机用dos编程，实时性好；软件设计采用兼容性和移植性好的模块式结构，便于二次开发。
On the basis of making full use of the new fruits of eda technology , this dissertation mainly discussed the design and implementation of a new hardware interpolation applied special integrate circuit , which agrees with the needs of developing high performance numerical control system 调试仿真结果表明，该方案切实可行，且与传统的硬件插补系统相比，具有体积小、功耗低、精度高、可靠性和抗干扰能力强等优点；与现有的软件插补相比，又具有速度快、实时性好、可靠性高等优点。
Through theory analysis and simulation experiments , it proves that fuzzy - adaptive pid is best among the three kinds of control strategies . and this controller whose structure is simple , feature of real time is good , function of resisting the disturbance is strong and control parameter is easy to select , has highly practical value 通过理论分析和仿真实验证明，在这三种控制策略中，模糊自适应pid控制是一种理想的控制方法，而且本文设计的模糊自适应pid控制器，结构简单，实时性好，抗扰动性能强，而且控制器参数选择简单，有很高的实用价值。
This interface system has merits such as complete functions , flexible configuration , many i / o interface dots , good real - time performance , high stability , high replantation ability and high ratio of performance to price . besides , it can be used in fields of other system simulation projects and industry control projects 该接口系统具有功能全面、组态灵活、 i o接口点多、实时性好、可靠性高、可移植性强且性价比高的优点，同时也可用于其它系统仿真工程、工业控制工程等领域。
Those prove those two method have good estimator in those situations . last bring forward some problems need improve . we can draw the follow conclusions from simulation and theoretic analysis : nonlinear observer and ins / gps system have those virtues : high estimated precision good - robustness and simple structure , convenience used to engineer , it can replace the measured value of sensors or be used to detect fault 通过理论分析和仿真验证，我们得到如下的结论：非线性观测器方法具有估冠穿北口二习七大学硕创七学位论文计精度高、很好抗干扰能力; ins / gps系统方法具有结构简单，易于工程实现，实时性好;两种方法均具有很高的工程应用价值，能够为现有硬件传感器提供一个解析余度信号和提高传感器的可靠性水平。
The system has some remarkable features as follows : real time response , high compatibility , high expandability , high precision , interference tolerance and friendly interface etc . considered the analysis of the requirement , the overall design is carried out on the basis of the actual character firstly 该远程监控系统具有实时性好、兼容性好、可扩展性强、测量精度高、抗干扰能力强以及全中文友好人机界面等优点。论文首先在需求分析的基础上，结合本系统的实际特点进行了系统的总体设计。
Mscis interface system is provided with complete function , flexible configuration , many i / o interface dots , good real time , high dependability , high replantation ability and high ratio of capability to price . besides , it can be used in the field of other system simulation projects and industry control project Mscis接口系统具有功能全面、组态灵活、 i o接口点多、实时性好、可靠性高、可移植性强且性价比高的优点，同时也可用于其它系统仿真工程、工业控制工程等领域。
The system has the following remarkable features : real time response , high compatibility , high expandability , strong anti - interference , high precision , high reliability and friendly man - machine interface etc . based on the requirement analysis , the overall design and the physical structure of the subsystem in the field are carried out firstly , and the design requirement of the software system is given 所实现的系统具有实时性好、兼容性好、可扩展性强、抗干扰能力强、测量精度高、可靠性高，以及采用全中文人机界面等优点。论文首先在需求分析的基础上进行了总体设计及现场子系统的物理结构设计，给出了系统的软件设计要求。分析了现场网络的形式，软件的设计与实现等。
